USN-4147-1: Linux kernel vulnerabilities

4 October 2019

linux, linux-aws, linux-azure, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04
  • Ubuntu 18.04 LTS

Summary

Several security issues were fixed in the Linux kernel.

Software Description

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-kvm - Linux kernel for cloud environments
  • linux-raspi2 - Linux kernel for Raspberry Pi 2
  • linux-snapdragon - Linux kernel for Snapdragon processors
  • linux-gke-5.0 - Linux kernel for Google Container Engine (GKE) systems
  • linux-hwe - Linux hardware enablement (HWE) kernel

Details

It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). A physically proximate attacker could use this to cause a denial of service (Wi-Fi disconnect). (CVE-2019-0136)

It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. A local attacker could use this to cause a denial of service. (CVE-2019-10207)

It was discovered that the GTCO tablet input driver in the Linux kernel did not properly bounds check the initial HID report sent by the device. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13631)

It was discovered that an out-of-bounds read existed in the QLogic QEDI iSCSI Initiator Driver in the Linux kernel. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2019-15090)

Hui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel did not properly validate device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15117)

Hui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel improperly performed recursion while handling device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15118)

It was discovered that the Raremono AM/FM/SW radio device driver in the Linux kernel did not properly allocate memory, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2019-15211)

It was discovered at a double-free error existed in the USB Rio 500 device driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service. (CVE-2019-15212)

It was discovered that a race condition existed in the CPiA2 video4linux device driver for the Linux kernel, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15215)

It was discovered that a race condition existed in the Softmac USB Prism54 device driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15220)

Benjamin Moody discovered that the XFS file system in the Linux kernel did not properly handle an error condition when out of disk quota. A local attacker could possibly use this to cause a denial of service. (CVE-2019-15538)

It was discovered that the Hisilicon HNS3 ethernet device driver in the Linux kernel contained an out of bounds access vulnerability. A local attacker could use this to possibly cause a denial of service (system crash). (CVE-2019-15925)

It was discovered that the Atheros mobile chipset driver in the Linux kernel did not properly validate data in some situations. An attacker could use this to cause a denial of service (system crash). (CVE-2019-15926)

Daniele Antonioli, Nils Ole Tippenhauer, and Kasper B. Rasmussen discovered that the Bluetooth protocol BR/EDR specification did not properly require sufficiently strong encryption key lengths. A physically proximate attacker could use this to expose sensitive information. (CVE-2019-9506)

It was discovered that ZR364XX Camera USB device driver for the Linux kernel did not properly initialize memory. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15217)

It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel made improper assumptions about the device characteristics. A physically proximate attacker could use this cause a denial of service (system crash). (CVE-2019-15218)

It was discovered that the Line 6 POD USB device driver in the Linux kernel did not properly validate data size information from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15221)

It was discovered that the Line 6 USB driver for the Linux kernel contained a race condition when the device was disconnected. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15223)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04
linux-image-5.0.0-1018-aws - 5.0.0-1018.20
linux-image-5.0.0-1019-kvm - 5.0.0-1019.20
linux-image-5.0.0-1019-raspi2 - 5.0.0-1019.19
linux-image-5.0.0-1020-gcp - 5.0.0-1020.20
linux-image-5.0.0-1022-azure - 5.0.0-1022.23
linux-image-5.0.0-1023-snapdragon - 5.0.0-1023.24
linux-image-5.0.0-31-generic - 5.0.0-31.33
linux-image-5.0.0-31-generic-lpae - 5.0.0-31.33
linux-image-5.0.0-31-lowlatency - 5.0.0-31.33
linux-image-aws - 5.0.0.1018.19
linux-image-azure - 5.0.0.1022.21
linux-image-gcp - 5.0.0.1020.46
linux-image-generic - 5.0.0.31.32
linux-image-generic-lpae - 5.0.0.31.32
linux-image-gke - 5.0.0.1020.46
linux-image-kvm - 5.0.0.1019.19
linux-image-lowlatency - 5.0.0.31.32
linux-image-raspi2 - 5.0.0.1019.16
linux-image-snapdragon - 5.0.0.1023.16
linux-image-virtual - 5.0.0.31.32
Ubuntu 18.04 LTS
linux-image-5.0.0-1020-gke - 5.0.0-1020.20~18.04.1
linux-image-5.0.0-31-generic - 5.0.0-31.33~18.04.1
linux-image-5.0.0-31-generic-lpae - 5.0.0-31.33~18.04.1
linux-image-5.0.0-31-lowlatency - 5.0.0-31.33~18.04.1
linux-image-generic-hwe-18.04 - 5.0.0.31.88
linux-image-generic-lpae-hwe-18.04 - 5.0.0.31.88
linux-image-gke-5.0 - 5.0.0.1020.9
linux-image-lowlatency-hwe-18.04 - 5.0.0.31.88
linux-image-snapdragon-hwe-18.04 - 5.0.0.31.88
linux-image-virtual-hwe-18.04 - 5.0.0.31.88

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References